Hi,
You need multiple processors and OS. I have no trouble with having a CISC Intel with XP on one hand, a RISC G5 Mac with OS/X on the other hand, and a Sun Ultra with Solaris on my third hand!

As for cost, think eBay. IBM Thinkpad x31 series with XP. $100 bux or less. Makes a perfect portable photo processor with fast processing times for 620x shots!

I have three of the things. P4M, 1.6GHz, 2 GB RAM, 100 GB drives. Had them for a while, and don't think I paid more than $150 for any one of them. They even do a good job on the much larger 760c shots.

Those are neat, too, in that the bottom half (with the hot/swap bay) drops off and gives you a really small, thin and light portable photo processor.
Seriously, you will really need PhotoDesk to handle that CYM filter. I tried all sorts of other things, and they all work for some shots, and then not for others. You can go nuts processing one shot on six different programs until you get it somewhere near right - or you can process in PhotoDesk once and get it the first time. Kodak knew they were screwing up the colors with the CFA and then fixed that in the processing software.
What we really need is a Kodak Xena-Color processor plug-in for Photoshop, but we don't got one!

Later!
Stan